For a ~$1500 square feet house, how are their AmplifiHD consumer WiFi Mesh network products? The reviews seem to say they are more consistent than Eero/Google

For a ~$1500 square feet house, how are their AmplifiHD consumer WiFi Mesh network products? The reviews seem to say they are more consistent than Eero/Google equivalents. Also, my one paranoid worry about routers are the frequency of security updates...my TP-link hasn't had a patch for 2 years, and I'm hoping Ubiquiti has a better track record to avoid things like a Mirai infestation...